Pen



FIG. 1 is a perspective view showing my new design in a retractedposition;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view thereof

FIG. 8 is a perspective view showing the pen in a use position;

FIG. 9 is a rear view thereof;

FIG. 10 is a front view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a bottom view thereof; and,

FIG. 14 is a top view thereof.

CLAIM The ornamental design for pen, as shown and described.